The venue's web site says all the proceeds will go to the victims and families affected by the tragedy.

Performers include the well-known local act Nada Surf and several international bands and DJs.

Tickets are between $15 and $30.

Siavash "Obash" Karampour and Koory Mirzeai, the two surviving members of Yellow Dogs, said the shooter they called "Rafi" became a member of their circle after he was invited to join Free Keys, another underground rock band that followed Yellow Dogs' footsteps by moving from Tehran to America in 2011.

The relationship between Rafi and frequent collaborators Free Keys and Yellow Dogs quickly soured, as "personal and musical differences" led Free Keys to end the partnership, according to the statement released last week.

"It became clear very quickly that he was not a natural fit within our group of friends, and his personal views conflicted with our approach to our art and to the world," Karampour and Mirzeai said in the statement, which was drafted with the help of the band's manager, friends and a member of Free Keys. "A few months later, both bands severed ties completely with Rafi and in the 14 months since then, we’ve had no contact with him at all."

Police have said they believe Rafi was "despondent" over no longer being in the band when he ambushed his former friends at their East Williamsburg rowhouse with a Spanish-made assault weapon and more than 100 rounds of ammunition.